Youngest Oscar winner for Best Supporting Actress
- Quem
- Tatum O'Neal
- Onde
- United States (Hollywood,)
- Quando
- 02 April 1974
The youngest Oscar winner is Tatum O'Neal (USA) (b. 5 November 1963) who was aged 10 years 148 days when she received the Best Supporting Actress award for Paper Moon (USA 1973) on 2 April 1974, at the Dorothy Chandler Pavillion.
Shirley Temple (b. 23 April 1928) was awarded an Honorary Oscar at the age of 6 years 310 days for her achievements in 1934.
| Name | Born | Film | Won | Age |
| Tatum O'Neal (USA) | 5 November 1963 | Paper Moon (USA 1973) | 2 April 1974 | 10 Years 148 days |
| Anna Paquin (Canada) | 24 July 1982 | The Piano (USA 1993) | 21 March 1994 | 11 years 240 days |
| Patty Duke (USA) | 14 December 1946 | The Mircale Worker (USA 1963) | 8 April 1963 | 16 years 115 days |
| Anne Baxter (USA) | 7 May 1923 | The Razor's |Edge (USA 1946) | 13 March 1947 | 23 years 310 days |
| Teresa Wright (USA) | 27 October 1918 | Mrs Miniver (USA 1942) | 4 March 1943 | 24 years 128 days |